Add a helper to group the writes to PMU counter, this will be
used by the transaction hooks.
Cc: Mark Rutland <mark.rutl...@arm.com>
Cc: Punit Agrawal <punit.agra...@arm.com>
Signed-off-by: Suzuki K. Poulose <suzuki.poul...@arm.com>
---
drivers/bus/arm-cci.c | 15 +++++++++++++++
1 file changed, 15 insertions(+)
diff --git a/drivers/bus/arm-cci.c b/drivers/bus/arm-cci.c
index ce0d3ef..f6b8717 100644
--- a/drivers/bus/arm-cci.c
+++ b/drivers/bus/arm-cci.c
@@ -785,6 +785,21 @@ static void pmu_write_counter(struct perf_event *event,
u32 value)
__pmu_write_counter(cci_pmu, value, idx);
}
+/* Write a value to a given set of counters */
+static void __pmu_write_counters(struct cci_pmu *cci_pmu, unsigned long *mask,
u32 value)
+{
+ int i;
+
+ for_each_set_bit(i, mask, cci_pmu->num_cntrs)
+ __pmu_write_counter(cci_pmu, value, i);
+}
+
+static void __maybe_unused
+pmu_write_counters(struct cci_pmu *cci_pmu, unsigned long *mask, u32 value)
+{
+ __pmu_write_counters(cci_pmu, mask, value);
+}
+
static u64 pmu_event_update(struct perf_event *event)
{
struct hw_perf_event *hwc = &event->hw;
--
1.7.9.5
--
To unsubscribe from this list: send the line "unsubscribe linux-kernel" in
the body of a message to majord...@vger.kernel.org
More majordomo info at http://vger.kernel.org/majordomo-info.html
Please read the FAQ at http://www.tux.org/lkml/
